Heating stove



. l sheets-Sheet E, L. MESSENGER- ,HEATING STOVB.

No. 352,879. Patented Nov. 16, 1886.

N, PETERS Pnam-Lnhgmpher. wnwngm. n.6.

(No Model.) l 7 B, LMBSSENGER.

'HEATING STOVE.

No. 352,879. lPanemged Nov.l 16,` 13186.

. l: z i III f i .Il 6:9 v l 2, @anno ooo 2 sheets-sheet 2.

UNITED STATESi4 PATENT f OEEICE.

EUGENE Li MESSENGER,AY OF FULTON, NEW YORK.

H EATING-STOVE.

EJPECIFICATION forming part of Letters Patent No. 352,879, datedNovember I6, 1886. Application filed December 26, 1885. Serial No.186,672. (No model.)

To all whom t may concern.:

Be it known that I, EUGENE L. MESSENGER, a citizen of the United States,residing at Fulton, in the county of Oswego and State of N ew York, haveinvented4 certain new and useful Improvements in Heating-Stoves; and Ido hereby declare the following to be afnll, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertainsto make and use the same-reference being hadto the 'accompanying drawings, and to letters or figures of referencemarkedy thereon, which form a part of this specification.

My invention relates particularly to that class of heating-stovewhich issupplied with means for taking fresh air from out-of-doors, heating it,and throwing it out into the room, such stove being provided with afoul-air flue for freeing the room of the foul or vitiated air, and myinvention consists in the improved arrangement and combination of thefoul-air iiue with the other operative parts of the stove, in a mannerwhich will be more fully hereinafter described and claimed.

In the drawings, Figure 1 is a vertical central transverse section of myimproved stove.' Fig. 2isa rear view of the same with portions brokenaway. Fig. 8 is a horizontalsection of Fig. 1, taken in the line x x.Fig. 4 is 'a section of a modification. Eig. 5 is aperspective View ofimproved stove with portions broken' away, and Fig. 6 is a similarperspective of lower portion of same.

Referring to the drawings, it will be seen that the stove to which myimprovement is applied is provided with the usual fire-pot, a, ashpit bbelow, and fuel-magazine e above. At the base of the stove, andextending entirely across same, is the low chamber d, into which opensthe passage d', communicating wit-h the air of the room, and the passaged, communicating by means of pipe d3 with the outside fresh air. Thechamber d opens into two ver-A tical chambers, e-one on each side of theashpit section-and these in turn open into four corner vertical flues,e', opening at their tops into the space e2, upon the upper wall ofwhich are the openings e3. p

It will be clearly seen by means of the series of arrows that the airboth from the room and from the outside is carried through the variouschambers of the stove, there heated, and then passed out into the roomat the top.

' At the rear of the stove are located the flues for carrying off theproducts of combustion, arranged on either side, of Which f is thedownflne, and f the up-ue. Boththese iiues are connected with thefire-box andwith the smokepipef2, leading to the chimney, and go to formthe customary direct and indirect drafts of the stove, the damper f3inthe up-ue f serving to change the draft,.as required. Centrally arrangedbetween these two fluesf andf is my Y improved foul-air Hue g, havingthe open end g at thebottom leading into the room, and at the top theopening g2, into which is fitted the smaller pipe g3, which'passescentrally up the smoke-pipef2 to a height somewhat above the point wherethe draft-fines enter such pipe. The foul-air iiue g is provided with adoor or damper, g4, at the bottom to o pen or close same.

In the operation of my improved construction just described, thefoul-air iiue is designed to be used when the fresh airwfrom outside istaken into the stove through the pipe d3. It is a well-known fact thatwhen you add fresh air to a room an equal quantitynlust be taken out,which I accomplish by making a door or damper, g4, in the foul-air flue,and as the fresh heated air is thrown out into the room the foul air hasa tendency to enter and pass up the flue g into the smoke-pipej', andout through the same. The relative amounts of air in the foul and freshair passages can be regulated by said door or damper.

I am aware that a foul-air flue has been heretofore arranged with astove, but in such a manner that the foul air, not being sufficientlyheated, served in its upward passage to retard the draft, and therebycheck the fire in the stove. I have completely overcome this difficultyby arranging my foul-air flue, as shown, between the up and down dues,so that the foul air in its upward passage is thoroughly heated bycontact with the intervening heated Walls of the draft-fines, and insuch heated condition it is not only readily passed-into the smokepipe,'but it materially assists the draft of the stove, thereby serving adouble purpose of effectually removing the foul air from the room,

IOO

as well as increasing the efficiency of the work- `ing parts.

In case of stoves fitted with three draft-fines, as shown in Fig. 4, inwhich h is the up-ue, located between the two downiiues 7L 7L,'myfoul-air flue would preferably be arranged, as shown, between the twodown-dues h IL', and between the up-flue 7L and the fire-box of thestove. XVhen the air is not being taken from the outside, but only fromthe room through passage d, the damper g4 in the foul-air flue g is tobe closed.

I claiml. The combination, with a stove provided with a returnpassagefor the products of coinbustion, of a passage within the stove separatefrom the fines of the stove, having a part of its length adjacent to thepassage for the products of combustion, said passage communicating withair outside of the room at one end and at the other discharging into theroom, and aventilat-ing-passage communicating with the air ofthe room atits lower end, and rising therefrom and discharging into the smokeoutletof the stove, said Ventilating-passage having a portion of its lengthadjacent to the passage for the products of combustion, substantially asdescribed.

2. The combination, with a stove provided with two vertical passages anda horizontal passage connecting the lower ends of the two, forming areturnpassage for the products of combustion, of a passage within thestove having a part in close proximity to the horizontalconnecting-passage communicating with the air outside of the room at oneend and at the other discharging within the room, and a foulairVentilating passage communicating with the air` of the room at its lowerend7 rising therefrom adjacent to the vertical passages of thereturn-Hue, and extending into the smokeoutlet of the stoveanddischarging into the same, substantially as described.

3. The combination, with a stove provided with two Vertical passages anda horizontal passage connecting the two lower ends of the two7 forming areturn-passage for the products of co mbnstion, of a passagewithin thestove having a part in close proximity to the horizontalconnectingpassage communicating 4with the air outside Iof the room atone end and at the other discharging within the'room, and a foulairVentilating-passage communicating with the airwithin the room at itslower end7 rising therefrom between the vertical passages of thereturn-Hue, and extending into the smoke-outlet and discharging into thesame, substantially as described.

In testimony whereof I have signed myname to this specification in thepresence of two sub scribing witnesses.

EUGENE L. MESSENGER.

Vitnesses:

W. T. MILLER, GEORGE BELIN.

